A biochemical detection device and method for heavy metals in Chinese herbal medicine slices

Abstract

The invention discloses a biochemical detection device and method for heavy metals in Chinese herbal medicine slices, comprising a base, wherein two groups of fixed supports and a liquid supply mechanism are respectively arranged on the top of the base, and a mixing chamber is installed on the top of the two groups of fixed supports, an integrated installation groove is arranged between the two groups of mixing chambers, a rotating turntable is sleeved in the middle of the top of the base, a plurality of sampling cylinders and a group of waste liquid receiving tanks are arranged on the top of the turntable, and a double-axis motor is arranged on the inner top of the installation groove; the invention can synchronously perform crushing, grinding and stirring and mixing of Chinese herbal medicine slices in the two groups of mixing chambers under the drive of the double-axis motor through the same structural arrangement of the two groups of mixing chambers, so that the two groups of chamber structures can be used alternately when performing continuous heavy metal detection of Chinese herbal medicine slices by synchronous application of the two groups of chambers, so that the Chinese herbal medicine slices can be crushed, ground and stirred and mixed in one mixing chamber before discharging.

Description

Technical Field

[0001] The invention relates to the technical field of heavy metal detection in traditional Chinese medicines, and in particular to a biochemical detection device and method for heavy metals in traditional Chinese medicine pieces. Background Art

[0002] Traditional Chinese medicine has a certain enrichment and biotransformation effect on heavy metal elements. Heavy metal pollution in the soil and water in the production environment and the cultivation matrix will significantly increase the enrichment of heavy metals in edible fungi, causing their heavy metal content to exceed the standard. The accumulated heavy metals enter the human body through the food chain, which will bring potential harm to the human body.

[0003] The authorized patent number CN114323856B discloses an intelligent detection device for residual heavy metals in Chinese herbal medicine slices. The device mainly puts the Chinese herbal medicine slice sample into the grinding tank, and crushes the Chinese herbal medicine slice through the grinding and stirring mechanism, then adds clean water to the grinding tank, soaks for a period of time, and mixes the Chinese herbal medicine powder and water evenly through the grinding and stirring mechanism to form a Chinese herbal medicine solution. After standing for a period of time, the solenoid valve is opened to allow the Chinese herbal medicine solution in the grinding tank to enter the sampling cup through the sampling tube, and the detection reagent in the reagent kit enters the sampling cup through the reagent tube. Then, the sampling cup is sent to the fluorescent detection box by the moving mechanism for heavy metal content detection and analysis. The device integrates the functions of grinding, stirring, sampling, and detection, which improves the working efficiency of detecting Chinese herbal medicine slices. However, when the device is actually used, it still has the following defects:

[0004] When conducting heavy metal detection of traditional Chinese medicine, the above-mentioned patent mainly crushes and grinds the traditional Chinese medicine slices, allowing the traditional Chinese medicine solution to enter the sampling cup through the sampling tube for detection. However, after each batch of traditional Chinese medicine slices is crushed and ground, the grinding and stirring mechanism is prone to residual drug residues, which in turn affects the heavy metal detection accuracy of the next batch of traditional Chinese medicine slices. When the structure is cleaned, it will affect the detection efficiency of the traditional Chinese medicine slices, increase the limitations and inconvenience of heavy metal detection of the device, and when the traditional Chinese medicine slices are crushed, they are prone to uneven sizes, which reduces the uniformity of tablet mixing. When the mixed traditional Chinese medicine liquid is connected to the liquid, the impact of the falling liquid is likely to cause the sampling tube to shake and shift in position, and there is a risk of tipping over. In addition, the sampling tube needs to be frequently disassembled and assembled for sampling, which is extremely inconvenient in actual operation, reducing the stability and safety of liquid sampling. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for biochemical detection of heavy metals in Chinese herbal medicine slices to solve the related problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device and method for biochemical detection of heavy metals in Chinese herbal medicine slices, comprising a base, two groups of fixed brackets and a liquid supply mechanism are respectively provided on the top of the base, and a mixing chamber is installed on the top of the two groups of fixed brackets, and an integrated installation groove is provided between the two groups of mixing chambers, a rotating turntable is sleeved in the middle of the top of the base, and multiple groups of sampling barrels and a group of waste liquid receiving tanks are provided on the top of the turntable, a double-axis motor is provided on the inner top of the installation groove, and a servo motor is provided on the bottom of the installation groove, and the output end of the servo motor is connected to the turntable, and an arc guide groove is provided on the top of the turntable, and multiple groups of sampling barrels are pushed and displaced on the inner side of the arc guide groove;

[0007] The two groups of mixing bins are provided with a trapezoidal material guide seat inside, a mixing groove is provided on one side of the two groups of mixing bins near the trapezoidal material guide seat, and a conical grinding groove is provided on the inner top of the mixing groove, a feeding port is provided on the top of the two groups of mixing bins, a drain valve interconnected with the mixing groove is provided at the bottom of the two groups of mixing bins, a reagent kit is provided at the bottom of the two groups of mixing bins, and a reagent tube interconnected is provided on one side of the reagent kit, the two groups of reagent tubes extend out of the base, an installation bin is provided on one side of the top of the two groups of mixing bins, a stirring rod is sleeved on the bottom of the two groups of installation bins, and the stirring rod extends to the inner side of the mixing groove, a bevel gear set meshing with each other is provided on the top of the outer side of the two groups of stirring rods and the outer side of the rotating shaft, a grinding block matching with the conical grinding groove is provided at the middle position of the outer side of the two groups of stirring rods, and a scraping type crushing mechanism is provided on the inner top of the two groups of mixing bins;

[0008] The scraping crushing mechanism is respectively composed of a sleeve, a first return spring, a sleeve rod, a mounting seat, a second return spring, a guide rod, a guide sleeve, a trapezoidal crushing block, an oblique crushing plate and an extension plate. The sleeves are divided into two groups. The two groups of sleeves are arranged at the top of the two mixing bins. The inner sides of the two groups of sleeves are respectively sleeved with a sleeve rod that is movable for lifting and lowering and a first return spring that is elastically connected to the sleeve rod. The bottoms of the two groups of sleeve rods are installed with mounting seats. The inner sides of the two groups of mounting seats are respectively sleeved with guide rods. The outer sides of the two groups of guide rods are respectively provided with a guide sleeve that is slidably matched and a second return spring that is elastically connected to the guide sleeve. The bottoms of the two groups of guide sleeves are provided with trapezoidal crushing blocks. An extension plate is installed on one side of the two groups of mounting seats close to each other, and the extension plate is in contact with the cam. The tops of the two groups of trapezoidal material guide seats are provided with oblique crushing plates that match the trapezoidal crushing blocks.

[0009] Preferably, the liquid supply mechanism comprises a water storage tank, a water pump, a liquid guide tube and a nozzle, respectively. The water storage tank is provided with two groups, and the two groups of water storage tanks are installed on both sides of the top of the base. The tops of the two groups of water storage tanks are provided with water pumps that are interconnected. The output ends of the two groups of water pumps are connected with liquid guide tubes, and the liquid guide tubes extend to the interior of the mixing tank and are provided with nozzles.

[0010] Preferably, a positioning mechanism is provided on one side of the interior of the turntable, and the positioning mechanism is respectively composed of a limit groove, a mounting plate, a rack plate, a gear, a fixed groove, a spring, a pull rod, an arc-shaped clamping plate and a limit block. A limit groove is symmetrically opened at the middle position of the inner side of the arc-shaped guide groove, and a sliding pull rod is provided inside the limit groove. Mounting plates are installed on the outer sides of the two groups of pull rods, and staggered rack plates are provided on the side where the two groups of mounting plates are close to each other. A fixing groove is provided on one side of the bottom of the interior of the turntable, and a gear is provided inside the fixing groove. The two groups of rack plates are meshed with the gear, and an arc-shaped clamping plate is installed on the side where the two groups of pull rods are close to each other. A limit block is provided on one side of the turntable.

[0011] Preferably, a groove is provided on one side of the top of the turntable, and the groove is fixedly matched with the waste liquid receiving trough, a group of the sampling tubes and the waste liquid receiving trough are opposite to the vertical surfaces of the two groups of drain valves, a bracket is provided on the outer side of the two groups of drain valves, and the two groups of reagent tubes extend to the inner side of the bracket and are opposite to the vertical surface of the sampling tube.

[0012] Preferably, a liquid level observation window and a bin door are respectively provided at one end of the front side of the two groups of mixing bins, and the two groups of liquid level observation windows are positioned opposite to the mixing troughs, the top surfaces of the two groups of trapezoidal material guide seats are arranged in an inclined structure, the mixing troughs inside the two groups of mixing bins are coordinated with the inclined surfaces of the trapezoidal material guide seats, and the two groups of stirring rods extend into the mixing troughs for stirring activities.

[0013] Preferably, the two groups of trapezoidal crushing blocks are in inclined contact and pressed together with the oblique crushing plate, and the two groups of trapezoidal crushing blocks are displaced on the inclined surface under the pressure of the oblique crushing plate through the guiding activities of the guide sleeve and the guide rod.

[0014] Preferably, the grinding block is in a conical structure and contacts the inner wall of the conical grinding tank. A through hole is provided at the bottom of the grinding block, and the stirring rod passes through the through hole to stir and mix in the mixing tank.

[0015] Preferably, a pull ring is provided on one side of a group of pull rods, and anti-slip grooves are provided on the outer side of the pull ring, and a positioning rod is provided on the top of the limit block, and the positioning rod is fixedly matched with the pull ring.

[0016] Preferably, the two groups of arc-shaped splints are arranged at the middle position of the inner side of the arc-shaped guide groove, the two groups of arc-shaped splints are adjusted and stored under the telescopic activity of the pull rod, and the multiple groups of sampling tubes move on the inner side of the arc-shaped guide groove, and the two groups of arc-shaped splints are positioned and matched with the sampling tubes.

[0017] A detection method of a biochemical detection device for heavy metals in Chinese herbal medicine slices, the detection steps are as follows:

[0018] Step 1: Put the Chinese herbal medicine pieces into the material inlet according to the specified number, and enter the bin body for crushing and grinding, so that the ground Chinese herbal medicine pieces are placed in the mixing tank for stirring;

[0019] Step 2: Use water to flush the crushed and ground powder into the mixing tank, and then start the stirring rod to stir and mix them;

[0020] Step three: After the Chinese herbal medicine pieces are mixed, the sample tube is placed in the liquid receiving port, and a specified amount of fluorescent agent is added to the liquid receiving port. Finally, the cylinder after sampling is placed in the fluorescent detection box for heavy metal detection;

[0021] Step 4: After the medicine solution is mixed and sampled, a new box can be switched to mix a new round of Chinese herbal medicine slices, and the bin and stirring structure after the previous round of sampling can be cleaned. This cycle can be repeated to allow the heavy metal detection of each Chinese herbal medicine slice to be carried out in an orderly manner.

[0022] Compared with the prior art, the present invention provides a biochemical detection device for heavy metals in Chinese herbal medicine slices, which has the following beneficial effects:

[0023] 1. The present invention adopts the same structural setting of two groups of mixing bins, and can synchronously perform the crushing, grinding and stirring and mixing of Chinese herbal medicines in the two groups of mixing bins under the drive of a dual-axis motor, so that the two groups of box structures can be used alternately during the continuous heavy metal detection of Chinese herbal medicines by utilizing the synchronous application of the two groups of boxes, so that the Chinese herbal medicines are crushed, ground and stirred and mixed in one group of mixing bins before discharging, and then the other group of mixing bins is quickly switched for secondary mixing, while the last time the bins are automatically cleaned under the action of crushing, grinding and stirring by the addition of water and cleaning agent, so as to automatically rinse the residual drug residues and adhered drug liquid in the bins, thereby increasing the continuous detection efficiency of heavy metals in Chinese herbal medicines and realizing the mixing detection work of the device without downtime.

[0024] 2. The present invention utilizes the rotation of the turntable to drive the position adjustment of the waste liquid receiving tank and the sampling tube, and then quickly samples the cleaned waste liquid and the mixed liquid medicine according to actual use needs. At the same time, when sampling, the setting of the reagent kit and the reagent tube is utilized to facilitate the direct addition of the fluorescent agent to the liquid medicine, so that the fluorescent agent and the stirred liquid medicine are evenly mixed, so that the fluorescent agent can be directly placed in the fluorescent monitoring device for heavy metal detection.

[0025] 3. The present invention facilitates sliding and pushing of multiple groups of sampling tubes in the arc-shaped guide grooves through the arrangement and coordination of the arc-shaped guide grooves, so that multiple sampling tubes can be kept in reserve at the same time, and as the tube body moves inward, it quickly slides into the middle position of the arc-shaped guide groove, eliminating the frequent disassembly and assembly of the existing sampling tubes, facilitating automatic replenishment of the sampling tubes for sampling and liquid collection, and maintaining stability and centering under the clamping and positioning structure of the positioning mechanism, thereby making the sampling tubes that receive liquid and the liquid discharge of the liquid discharge valve more stable and safe, and avoiding position displacement and tipping of the sampling tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of the present invention;

[0027] Figure 2 It is a front cross-sectional view of the present invention;

[0028] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0029] Figure 4 For the present invention Figure 2 A magnified view of point B;

[0030] Figure 5 A three-dimensional diagram of the mounting base of the present invention;

[0031] Figure 6 A three-dimensional diagram of a turntable of the present invention;

[0032] Figure 7 It is a three-dimensional diagram of the positioning mechanism of the present invention.

[0033] In the figure: 1, base; 2, turntable; 3, sampling tube; 4, positioning mechanism; 401, limiting groove; 402, mounting plate; 403, rack plate; 404, gear; 405, fixing groove; 406, spring; 407, pull rod; 408, arc clamping plate; 409, limiting block; 5, liquid supply mechanism; 501, water storage tank; 502, water pump; 503, liquid guide tube; 504, nozzle; 6, mixing tank; 7, mounting groove; 8, scraping type crushing mechanism; 801, sleeve; 802, first return spring; 803, sleeve rod; 804, mounting seat; 805, second return spring; 806, guide rod; 807, guide sleeve; 808, trapezoidal crushing block; 809, oblique crushing plate; 8010, extension plate; 9, double-axis motor; 10, servo motor; 11, feed inlet; 12, trapezoidal material guide seat; 13, grinding block; 14, conical grinding groove; 15, stirring rod; 16, reagent box; 17, reagent tube; 18, drain valve; 19, cam; 20, bevel gear set; 21, mounting bin; 22, arc guide groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-7 The present invention provides a technical solution: a biochemical detection device for heavy metals in Chinese herbal medicine slices, comprising a base 1, two groups of fixed brackets and a liquid supply mechanism 5 are respectively provided on the top of the base 1, and a mixing chamber 6 is installed on the top of the two groups of fixed brackets, and an integrated installation groove 7 is provided between the two groups of mixing chambers 6, a rotating turntable 2 is sleeved in the middle of the top of the base 1, and multiple groups of sampling tubes 3 and a group of waste liquid receiving tanks are provided on the top of the turntable 2, a double-axis motor 9 is provided on the inner top of the installation groove 7, and a servo motor 10 is provided on the bottom of the installation groove 7, and the output end of the servo motor 10 is connected to the turntable 2, and an arc guide groove 22 is provided on the top of the turntable 2, and multiple groups of sampling tubes 3 are pushed and displaced on the inner side of the arc guide groove 22;

[0036] Trapezoidal material guide seats 12 are installed inside the two groups of mixing bins 6, mixing grooves are provided on one side of the two groups of mixing bins 6 near the trapezoidal material guide seats 12, and a conical grinding groove 14 is provided on the inner top of the mixing groove, a feed port 11 is opened on the top of the two groups of mixing bins 6, a drain valve 18 interconnected with the mixing groove is provided at the bottom of the two groups of mixing bins 6, a reagent reagent 16 is provided at the bottom of the two groups of mixing bins 6, and a reagent tube 17 interconnected is provided on one side of the reagent reagent 16, and two groups of reagent tubes 17 extend out of the base 1, a mounting bin 21 is provided on one side of the top of the two groups of mixing bins 6, a stirring rod 15 is sleeved on the bottom of the two groups of mounting bins 21, and the stirring rod 15 extends to the inner side of the mixing groove, a bevel gear set 20 meshing with each other is provided on the top of the outer side of the two groups of stirring rods 15 and the outer side of the rotating shaft, a grinding block 13 grinding with the conical grinding groove 14 is provided at the middle position of the outer side of the two groups of stirring rods 15, and a scraping type grinding mechanism 8 is provided on the inner top of the two groups of mixing bins 6;

[0037] The scraping crushing mechanism 8 is composed of a sleeve 801, a first return spring 802, a sleeve rod 803, a mounting seat 804, a second return spring 805, a guide rod 806, a guide sleeve 807, a trapezoidal crushing block 808, an oblique crushing plate 809 and an extension plate 8010. The sleeve 801 is divided into two groups, and the two groups of sleeves 801 are arranged at the top of the two groups of mixing bins 6. The inner sides of the two groups of sleeves 801 are respectively provided with a sleeve rod 803 that is movable in lifting and lowering and a first return spring 802 that is elastically connected to the sleeve rod 803. The bottom of the two groups of sleeve rods 803 A mounting seat 804 is installed, and guide rods 806 are respectively sleeved on the inner sides of the two groups of mounting seats 804, and guide sleeves 807 for sliding fit and second return springs 805 elastically connected to the guide sleeves 807 are respectively provided on the outer sides of the two groups of guide sleeves 806. Trapezoidal crushing blocks 808 are provided at the bottoms of the two groups of guide sleeves 807. Extension plates 8010 are installed on the sides of the two groups of mounting seats 804 close to each other, and the extension plates 8010 are in contact with the cam 19. Oblique crushing plates 809 that are compatible with the trapezoidal crushing blocks 808 are provided on the tops of the two groups of trapezoidal material guide seats 12.

[0038] As a preferred solution of this embodiment: the liquid supply mechanism 5 includes a water storage tank 501, a water pump 502, a liquid guide tube 503 and a nozzle 504. There are two groups of water storage tanks 501, and the two groups of water storage tanks 501 are installed on both sides of the top of the base 1. The tops of the two groups of water storage tanks 501 are provided with water pumps 502 that are interconnected. The output ends of the two groups of water pumps 502 are connected with the liquid guide tube 503, and the liquid guide tube 503 extends to the interior of the mixing tank 6 and is provided with a nozzle 504.

[0039] As a preferred solution of this embodiment: a positioning mechanism 4 is provided on one side of the interior of the turntable 2, and the positioning mechanism 4 is respectively composed of a limiting groove 401, a mounting plate 402, a rack plate 403, a gear 404, a fixing groove 405, a spring 406, a pull rod 407, an arc-shaped clamping plate 408 and a limiting block 409. A limiting groove 401 is symmetrically provided at the middle position of the inner side of the arc-shaped guide groove 22, and a sliding pull rod 407 is sleeved inside the limiting groove 401, and mounting plates 402 are installed on the outer sides of two groups of pull rods 407, and staggered rack plates 403 are provided on one side of the two groups of mounting plates 402 close to each other, a fixing groove 405 is provided on one side of the bottom of the interior of the turntable 2, and a gear 404 is sleeved inside the fixing groove 405, and the two groups of rack plates 403 are meshed with the gear 404, and an arc-shaped clamping plate 408 is installed on the side of the two groups of pull rods 407 close to each other, and a limiting block 409 is provided on one side of the turntable 2;

[0040] A pull ring is provided on one side of a set of pull rods 407, and anti-slip grooves are provided on the outer side of the pull ring. A positioning rod is provided on the top of the limit block 409, and the positioning rod is fixedly matched with the pull ring, so that the stretched state of the pull rod 407 can be positioned by utilizing the structural cooperation of the pull ring and the positioning rod, thereby avoiding continuous manual maintenance of the stretched state and increasing the convenience of adjustment for the operator.

[0041] Two groups of arc-shaped splints 408 are arranged at the middle position of the inner side of the arc-shaped guide groove 22. The two groups of arc-shaped splints 408 are adjusted and stored under the telescopic activity of the pull rod 407. Multiple groups of sampling tubes 3 move on the inner side of the arc-shaped guide groove 22. The two groups of arc-shaped splints 408 are positioned and matched with the sampling tubes 3. The telescopic adjustment and storage cooperation of the two groups of arc-shaped splints 408 facilitate the positioning of the sampling tubes 3 during sampling work, and when storing, the multiple groups of sampling tubes 3 are prompted to be displaced and adjusted on the inner side of the arc-shaped guide groove 22.

[0042] As a preferred solution of this embodiment: a groove is provided on one side of the top of the turntable 2, and the groove is fixedly matched with the waste liquid receiving trough, a group of sampling tubes 3 and the waste liquid receiving trough are vertically opposite to the two groups of drain valves 18, and a bracket is provided on the outside of the two groups of drain valves 18, and two groups of reagent tubes 17 extend to the inner side of the bracket and are vertically matched with the sampling tube 3. The setting of the groove facilitates the positioning of the waste liquid receiving trough and improves the stability of liquid reception.

[0043] As a preferred solution of this embodiment: a liquid level observation window and a bin door are respectively provided at one end of the front side of the two groups of mixing bins 6, and the two groups of liquid level observation windows are opposite to the mixing troughs. The top surfaces of the two groups of trapezoidal material guide seats 12 are arranged in an inclined structure. The mixing troughs inside the two groups of mixing bins 6 are coordinated with the inclined surfaces of the trapezoidal material guide seats 12, and two groups of stirring rods 15 extend into the mixing troughs for stirring activities. The stirring activities of the two groups of stirring rods 15 can not only mix the medicine liquid evenly during mixing, but also promote the flow of water during cleaning, thereby improving the cleaning efficiency of the bin body by water.

[0044] As a preferred solution of this embodiment: two groups of trapezoidal crushing blocks 808 are in inclined contact and crushing cooperation with the oblique crushing plate 809. The two groups of trapezoidal crushing blocks 808 are guided by the guide sleeve 807 and the guide rod 806 and are displaced on the inclined surface under the pressure of the oblique crushing plate 809. The movable setting of the trapezoidal crushing blocks 808 can prompt the structure to contact and squeeze the oblique crushing plate 809 while pressing downward, and further scrape and rub inward, thereby improving the accuracy of the structure in crushing and grinding the tablets and increasing the grinding processing effect of the tablets.

[0045] As a preferred solution of this embodiment: the grinding block 13 has a conical structure and contacts the inner wall of the conical grinding groove 14. A through hole is provided at the bottom of the grinding block 13. The stirring rod 15 passes through the through hole to stir and mix in the mixing groove. The setting of the through hole allows the grinding block 13 with a conical structure to cooperate with the conical grinding groove to grind the tablets and discharge them downward, and mix them with the supply of water, thereby increasing the working efficiency of Chinese medicine mixing.

[0046] A detection method of a biochemical detection device for heavy metals in Chinese herbal medicine slices, the detection steps are as follows:

[0047] Step 1: Put the Chinese herbal medicine pieces into the material inlet according to the specified number, and enter the bin body for crushing and grinding, so that the ground Chinese herbal medicine pieces are placed in the mixing tank for stirring;

[0048] Step 2: Use water to flush the crushed and ground powder into the mixing tank, and then start the stirring rod to stir and mix them;

[0049] Step three: After the Chinese herbal medicine pieces are mixed, the sample tube is placed in the liquid receiving port, and a specified amount of fluorescent agent is added to the liquid receiving port. Finally, the cylinder after sampling is placed in the fluorescent detection box for heavy metal detection;

[0050] Step 4: After the medicine solution is mixed and sampled, a new box can be switched to mix a new round of Chinese herbal medicine slices, and the bin and stirring structure after the previous round of sampling can be cleaned. This cycle can be repeated to allow the heavy metal detection of each Chinese herbal medicine slice to be carried out in an orderly manner.

[0051] Embodiment 1, as Figure 1-2 As shown, by using the arrangement and coordination of two groups of mixing bins 6, after the mixing of the liquid medicine in one group of mixing bins 6, the operator can place the Chinese medicine slices into another group of mixing bins 6 to mix a new batch of liquid medicine. At this time, the internal structures of the two groups of mixing bins 6 are synchronously driven under the start of the dual-axis motor 9, so as to cooperate with the injection of the cleaning water, so that the liquid medicine bin of the previous round of mixing is rinsed under the injection of the cleaning water, and the contact activities of the trapezoidal crushing block 808 and the oblique crushing plate 809 and the rotation of the grinding block 13 and the conical grinding groove 14 and the stirring rod 15 are coordinated, so that the cleaning water is used to comprehensively clean the wall and structure of the bin body, so that the bin body can be cleaned while the new batch of liquid medicine is mixed. The alternating use of the two groups of mixing bins 6 can realize uninterrupted and non-stop mixing of Chinese medicine slices and enhance the detection efficiency of heavy metallization.

[0052] Embodiment 2, as Figure 2-3 and Figure 6-7As shown, when sampling the mixed liquid medicine through the sampling tube 3, a group of pull rods 407 can be pulled first to drive the spring 406 to be elastically compressed, and the mounting plate 402 and the rack plate 403 can be moved, and the gear 404 can be meshed with each other while the group of structures moves. At this time, the gear 404 can be rotated to drive another group of rack plates 403, the mounting plate 402 and the pull rods 407 to move away from the outside, so that the two groups of pull rods 407 drive the arc clamping plate 408 to adjust the structural spacing, and the arc clamping plate 408 is put into the groove body inside the turntable 2. At this time, a group of sampling tubes 3 can be pushed to allow multiple sampling The sample tube 3 contacts and moves inwards. When the sampling tube 3 for sampling is placed in the center of the arc guide groove 22, the pulling of the pull rod 407 can be cancelled, prompting the spring 406 to recover elastically and resetting the two sets of pull rods 407. The two sets of arc clamps 408 are automatically closed to clamp and position the centered sampling tube 3, so as to ensure that the sampling tube 3 for sampling remains stable when contacting the liquid, avoids misalignment, and improves the liquid contact accuracy and efficiency. After contacting the liquid, the sampling tube 3 can be pushed inward by multiple sets of sampling tubes 3, so that the sampling tube 3 can be stored at the rear of the arc guide groove 22 so that it can be taken out at any time for detection.

[0053] Working principle: In the biochemical detection device for heavy metals in Chinese herbal medicine pieces;

[0054] When conducting heavy metal detection of Chinese herbal medicine slices, firstly, the Chinese herbal medicine slices are placed into one of the mixing bins 6 from the feed port 11, and then the double-axis motor 9 is started to drive the bevel gear set 20 to mesh and the cam 19 to rotate. At this time, as the cam 19 rotates, it contacts the extension plate 8010, so that the extension plate 8010 drives the mounting seat 804 to move up and down as a whole under the elastic restoring force of the sleeve rod 803, the sleeve tube 801 and the first return spring 802. When the pressure given by the mounting seat 804 and the cam 19 decreases, the trapezoidal crushing block 808 can contact the surface of the oblique crushing plate 809, thereby crushing the slipped Chinese medicine pieces, and as the force of the cam 19 increases, the oblique crushing plates 809 can contact the oblique crushing plates 809, prompting the trapezoidal crushing block 808 to move to the side inclined surface under the action of pressure, so that the trapezoidal crushing block 808 can be guided by the guide sleeve 807 and the guide rod 806 and the elastic reset of the second reset spring 805, so as to cause the trapezoidal crushing block 808 to move to the side inclined surface. The crushing block 808 forms an intermittent scraping crushing structure under the contact cooperation of the oblique crushing plate 809, which makes the crushing effect of the Chinese medicine slices better and allows the crushed slices to slide into the conical grinding groove 14. At this time, the stirring rod 15 can be driven to rotate as a whole under the structural meshing of the bevel gear set 20, so that the stirring rod 15 drives the grinding block 13 to rotate to grind the crushed tablets, so that the powder can be more accurately infiltrated into the mixing groove inside the mixing chamber 6. At this time, water can be added, and a set of water pumps can be used to grind the crushed tablets. The start of 502 draws out the water in the water storage tank 501 and guides it into the nozzle 504 from the liquid guide pipe 503, so that the nozzle 504 can spray the water from the top of the trapezoidal material guide seat 12 to preliminarily rinse the oblique crushing plate 809 and the trapezoidal crushing block 808, bring the adhered medicine powder into the conical grinding groove 14, and simultaneously bring the medicine powder on the surface of the conical grinding groove 14 and the grinding block 13 into the mixing groove, and cooperate with the stirring work of the stirring rod 15 in the mixing groove to quickly mix the Chinese medicine pieces;

[0055] After the medicinal liquid is mixed, the turntable 2 can be driven to rotate as a whole by starting the servo motor 10, and the sampling tube 3 at the corresponding position can be rotated to below the drain valve 18, and the drain valve 18 can be started to discharge the medicinal liquid into the sampling tube 3 for collection. The medicinal liquid is automatically sampled, and the fluorescent agent can be introduced into the sampling tube 3 by the setting of the reagent kit 16 and the reagent tube 17 using the reagent tube 17, so that it can be evenly mixed with the freshly mixed medicinal liquid. At this time, the sampling tube 3 can be taken out for heavy metal detection, thereby improving the accuracy and efficiency of heavy metal detection of Chinese herbal medicines.

[0056] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A biochemical detection device for heavy metals in Chinese herbal medicine slices, comprising a base (1), characterized in that: Two groups of fixed brackets and a liquid supply mechanism (5) are respectively provided on the top of the base (1), and a mixing chamber (6) is respectively installed on the top of the two groups of fixed brackets. An integrated installation groove (7) is provided between the two groups of mixing chambers (6). A rotatable turntable (2) is sleeved in the middle of the top of the base (1), and a plurality of groups of sampling tubes (3) and a group of waste liquid receiving tanks are provided on the top of the turntable (2). A dual-axis motor (9) is provided on the inner top of the installation groove (7), and a servo motor (10) is provided on the bottom of the interior of the installation groove (7). The output end of the servo motor (10) is connected to the turntable (2). An arc guide groove (22) is provided on the top of the turntable (2), and the plurality of groups of sampling tubes (3) are pushed and displaced on the inner side of the arc guide groove (22). The two groups of mixing bins (6) are respectively provided with a trapezoidal material guide seat (12), the two groups of mixing bins (6) are respectively provided with a mixing groove on one side close to the trapezoidal material guide seat (12), and the inner top of the mixing groove is provided with a conical grinding groove (14), the top of the two groups of mixing bins (6) is provided with a feed inlet (11), the bottom of the two groups of mixing bins (6) is provided with a drain valve (18) interconnected with the mixing groove, the bottom of the two groups of mixing bins (6) is respectively provided with a reagent box (16), and one side of the reagent box (16) is provided with a reagent tube (17) interconnected, the two groups of reagent tubes (17) extend out of the outside of the base (1), and one side of the top of the two groups of mixing bins (6) is respectively provided with a mounting hole (14). The bottom of the two groups of mounting bins (21) are respectively sleeved with stirring rods (15), and the stirring rods (15) extend to the inner side of the mixing tank. The top of the outer side of the two groups of stirring rods (15) and the outer side of the rotating shaft are provided with mutually meshing bevel gear sets (20). The middle position of the outer side of the two groups of stirring rods (15) is provided with a grinding block (13) for grinding with the conical grinding tank (14). The grinding block (13) is in a conical structure and contacts with the inner wall of the conical grinding tank (14). The bottom of the grinding block (13) is provided with a through hole. The stirring rod (15) passes through the through hole to stir and mix in the mixing tank. The inner top of the two groups of mixing bins (6) is respectively provided with a scraping type grinding mechanism (8); The scraping type crushing mechanism (8) is composed of a sleeve (801), a first return spring (802), a sleeve rod (803), a mounting seat (804), a second return spring (805), a guide rod (806), a guide sleeve (807), a trapezoidal crushing block (808), an oblique crushing plate (809) and an extension plate (8010). The sleeve (801) is divided into two groups. The two groups of sleeves (801) are respectively arranged at the top of the inside of the two groups of mixing bins (6). The inner sides of the two groups of sleeves (801) are respectively sleeved with a sleeve rod (803) that is movable in lifting and lowering and a first return spring (802) that is elastically connected to the sleeve rod (803). The bottom portions of the two groups of sleeve rods (803) are The two groups of mounting seats (804) are respectively provided with guide rods (806) on their inner sides, the two groups of guide rods (806) are respectively provided with guide sleeves (807) for sliding fit and second return springs (805) elastically connected to the guide sleeves (807) on their outer sides, the two groups of guide sleeves (807) are respectively provided with trapezoidal crushing blocks (808) at their bottoms, the two groups of mounting seats (804) are respectively provided with extension plates (8010) on the sides close to each other, and the extension plates (8010) are in contact with the cam (19), and the tops of the two groups of trapezoidal material guide seats (12) are respectively provided with oblique crushing plates (809) that are mutually compatible with the trapezoidal crushing blocks (808); The two groups of trapezoidal crushing blocks (808) are respectively in contact with the oblique crushing plate (809) in an inclined surface and are pressed together. The two groups of trapezoidal crushing blocks (808) are respectively displaced in an inclined surface under the pressure of the oblique crushing plate (809) through the guiding activities of the guide sleeve (807) and the guide rod (806); The double-axis motor (9) is started to drive the bevel gear set (20) structure to mesh and the cam (19) to rotate. At this time, as the cam (19) rotates, it contacts the extension plate (8010), so that the extension plate (8010) drives the mounting seat (804) as a whole to move up and down under the elastic restoring force of the sleeve rod (803), the sleeve (801) and the first return spring (802). When the mounting seat (804) cooperates with the pressure given by the cam (19) to decrease, the trapezoidal crushing block (808) and the oblique crushing plate (809) surface can contact each other, thereby crushing the slipped Chinese medicine pieces. As the force of the cam (19) increases, the oblique crushing plates (809) come into contact with each other, prompting the trapezoidal crushing block (808) to move toward the side inclined surface under the action of pressure, so that the trapezoidal crushing block (808) can be guided by the guide sleeve (807) and the guide rod (806) and the elastic reset of the second reset spring (805), so that the intermittent scraping and crushing structure is formed under the contact and cooperation of the oblique crushing plates (809), and the crushed medicinal pieces can slide into the conical grinding groove (14), and at this time, the stirring rod (15) can be driven to rotate as a whole under the structural meshing of the bevel gear set (20).

2. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 1, characterized in that: The liquid supply mechanism (5) comprises a water storage tank (501), a water pump (502), a liquid guide tube (503) and a nozzle (504). The water storage tank (501) is provided in two groups. The two groups of water storage tanks (501) are installed on both sides of the top of the base (1). The tops of the two groups of water storage tanks (501) are provided with water pumps (502) that are interconnected. The output ends of the two groups of water pumps (502) are connected with the liquid guide tube (503). The liquid guide tube (503) extends to the interior of the mixing tank (6) and is provided with a nozzle (504).

3. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 1, characterized in that: A positioning mechanism (4) is provided on one side of the rotating disk (2), and the positioning mechanism (4) is respectively composed of a limiting groove (401), a mounting plate (402), a rack plate (403), a gear (404), a fixing groove (405), a spring (406), a pull rod (407), an arc-shaped clamping plate (408) and a limiting block (409). The limiting groove (401) is symmetrically provided at the middle position of the inner side of the arc-shaped guide groove (22), and a pull rod (407) is slidably fitted inside the limiting groove (401). The two sets of pull rods are The outer sides of the two sets of mounting plates (402) are respectively installed with mounting plates (402), and the sides of the two sets of mounting plates (402) close to each other are provided with staggered rack plates (403), one side of the bottom of the inner part of the turntable (2) is provided with a fixing groove (405), and the inside of the fixing groove (405) is provided with a gear (404), the two sets of rack plates (403) and the gear (404) are meshed with each other, and the sides of the two sets of pull rods (407) close to each other are installed with an arc-shaped clamping plate (408), and one side of the turntable (2) is provided with a limit block (409).

4. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 1, characterized in that: A groove is provided on one side of the top of the turntable (2), and the groove is fixedly matched with the waste liquid receiving tank. A group of the sampling tubes (3) and the waste liquid receiving tank are vertically opposite to the two groups of drain valves (18). A bracket is provided on the outside of the two groups of drain valves (18). The two groups of reagent tubes (17) extend to the inside of the bracket and are vertically matched with the sampling tubes (3).

5. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 1, characterized in that: A liquid level observation window and a bin door are respectively provided at one end of the front face of the two groups of mixing bins (6), and the two groups of liquid level observation windows are located opposite to the mixing troughs. The top surfaces of the two groups of trapezoidal material guide seats (12) are arranged in an inclined structure. The mixing troughs inside the two groups of mixing bins (6) are connected and matched with the inclined surfaces of the trapezoidal material guide seats (12), and the two groups of stirring rods (15) respectively extend into the mixing troughs for stirring activities.

6. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 3, characterized in that: A pull ring is provided on one side of a group of pull rods (407), and anti-slip grooves are provided on the outer side of the pull ring. A positioning rod is provided on the top of the limit block (409), and the positioning rod is fixedly matched with the pull ring.

7. The device for biochemical detection of heavy metals in Chinese herbal medicine slices according to claim 3, characterized in that: The two groups of arc-shaped clamping plates (408) are arranged at the middle position of the inner side of the arc-shaped guide groove (22). The two groups of arc-shaped clamping plates (408) are adjusted and stored under the telescopic movement of the pull rod (407). The multiple groups of sampling tubes (3) move on the inner side of the arc-shaped guide groove (22), and the two groups of arc-shaped clamping plates (408) are positioned and matched with the sampling tubes (3).

8. A method for detecting heavy metals in Chinese herbal medicine slices by a biochemical detection device, comprising a biochemical detection device for heavy metals in Chinese herbal medicine slices as claimed in any one of claims 1 to 7, wherein the steps of the detection method are as follows: Step 1: Put the Chinese herbal medicine pieces into the material inlet according to the specified number, and enter the bin body for crushing and grinding, so that the ground Chinese herbal medicine pieces are placed in the mixing tank for stirring; Step 2: Use water to flush the crushed and ground powder into the mixing tank, and then start the stirring rod to stir and mix them; Step three: After the Chinese herbal medicine pieces are mixed, the sample tube is placed in the liquid receiving port, and a specified amount of fluorescent agent is added to the liquid receiving port. Finally, the cylinder after sampling is placed in the fluorescent detection box for heavy metal detection; Step 4: After the medicine solution is mixed and sampled, a new box can be switched to mix a new round of Chinese herbal medicine slices, and the bin and stirring structure after the previous round of sampling can be cleaned. This cycle can be repeated to allow the heavy metal detection of each Chinese herbal medicine slice to be carried out in an orderly manner.

Images